https://bugzilla.novell.com/show_bug.cgi?id=395845
Summary: gmcs fails to compile nullable user defined unary
operators
Product: Mono: Compilers
Version: SVN
Platform: Other
OS/Version: Other
Status: NEW
Severity: Normal
Priority: P5 - None
Component: C#
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
QAContact: [email protected]
Found By: ---
The following test case compiles with csc and should print OK:
>>>>>>>>>>>>>>>>>>>>
using System;
struct Foo {
public int Value;
public Foo (int value)
{
this.Value = value;
}
public static Foo operator - (Foo? f)
{
if (f.HasValue)
return new Foo (-f.Value.Value);
return new Foo (42);
}
}
struct Bar {
public int Value;
public Bar (int value)
{
this.Value = value;
}
public static Bar? operator - (Bar? b)
{
if (b.HasValue)
return new Bar (-b.Value.Value);
return b;
}
}
class Test {
static Foo NegateFoo (Foo f)
{
return -f;
}
static Foo NegateFooNullable (Foo? f)
{
return -f;
}
static Bar? NegateBarNullable (Bar? b)
{
return -b;
}
static Bar? NegateBar (Bar b)
{
return -b;
}
static int Main ()
{
if (NegateFooNullable (null).Value != 42)
return 1;
if (NegateFoo (new Foo (2)).Value != -2)
return 2;
if (NegateBarNullable (null) != null)
return 3;
if (NegateBar (new Bar (2)).Value.Value != -2)
return 4;
Console.WriteLine ("OK");
return 0;
}
}
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